<!DOCTYPE html>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<html>
<head>
  <title>CSS Reference</title>
  <style>
    div {
      border: 1px solid black;
      width:  30px;
      height: 50px;
      margin: 1px;
      float: left;
    }
    br { clear: both; }
  </style>
</head>
<body>
  <!-- No color stops (transparent): -->
  <div></div>

  <!-- Add another background to be sure we're transparent, not white: -->
  <div style="background: linear-gradient(to right, pink, purple)"></div>
  <br>

  <!-- One color stop, at various positions (renders as solid color): -->
  <div style="background: blue"></div>
  <div style="background: blue"></div>
  <div style="background: blue"></div>
  <div style="background: blue"></div>
  <br>

  <!-- Two color stops, both at the same position: -->
  <div style="background: yellow"></div>
  <div style="background: blue"></div>
  <div style="background: linear-gradient(to right,
                                          blue 30%, yellow 30%)"></div>
  <div style="background: yellow"></div>
  <div style="background: blue"></div>
  <br>

  <!-- Color stops out of order & need (stable) sorting: -->
  <div style="background: linear-gradient(to right,
                                          blue, yellow)"></div>
  <div style="background: linear-gradient(to right,
                                          salmon, yellow)"></div>
  <div style="background: linear-gradient(to right,
                                          blue, yellow)"></div>
  <div style="background: linear-gradient(to right,
                                          blue, yellow)"></div>
  <div style="background: linear-gradient(to right,
                                          yellow, salmon 80%, blue)"></div>
</body>
</html>
